CVE-2021-31649: In applications using jfinal 4.9.08 and below, there is a deserialization vulnerability when using redis,ma...

Security readout for executives and security teams

Applications built with JFinal 4.9.08 or earlier may be at risk if they use Redis-related functionality. The CVE description says unsafe deserialization may allow remote code execution. Public evidence in the bundle is sparse, so treat this as a potentially serious framework usage issue requiring inventory and vendor guidance review. Exposure is most likely in Java applications using JFinal 4.9.08 or earlier with Redis integration enabled or reachable. The CVE data does not identify specific packaged products, deployment patterns, or default vulnerable configurations. Prioritize identification first. This could be severe where affected JFinal applications use Redis and process untrusted data, but the public record lacks scoring, confirmed exploitation, and remediation detail. Mitigation focus: Inventory applications using JFinal and identify versions at or below 4.9.08.; Determine whether those applications use Redis-backed functionality or Redis serialization paths.; Check JFinal project or vendor guidance for fixed versions or configuration mitigations..

Prepared

Jun 2, 2026, 19:19 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.